Artery puncture blood taking needle

Abstract

The utility model discloses an artery puncture blood taking needle which comprises a tube plug puncture needle protective sleeve, a tube plug puncture needle, a tube plug puncture needle cap, a tube plug puncture needle base and a hose with a conical connector. The head end of the hose is an outer conical joint, and the tail end is an inner conical joint. And the outer conical joint can be tightly connected to a T-shaped tube of the artery puncture catheter. And the inner conical joint can be tightly connected with a tube plug puncture needle base. The tube plug puncture needle and the tube plug puncture needle protective sleeve are both fixed on the tube plug puncture needle base, and the tube plug puncture needle protective sleeve is located outside the tube plug puncture needle and is longer than the tube plug puncture needle. The utility model has the advantages of simplicity, practicability and low material price, and is a disposable product.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical appliances, and in particular relates to an arterial puncture blood collection needle. Background Art

[0002] Non-invasive blood pressure monitoring is a commonly used blood pressure monitoring method with the advantages of simple operation, painless, and safe, but it cannot provide real-time data changes. For critically ill patients in the intensive care unit, due to the serious condition of the patients and large fluctuations in vital signs, invasive arterial blood pressure monitoring is used to observe the patient's real-time blood pressure. Invasive blood pressure monitoring requires arterial puncture and catheterization and connection of a pressure sensor, and the data is read using a monitor. Arterial blood can be drawn at the T-shaped opening of the arterial puncture catheter for blood gas analysis or some examinations that can be performed using arterial blood, reducing the number of punctures and blood draws for patients.

[0003] When drawing blood for arterial blood gas analysis, a special arterial blood gas needle is used for drawing blood. When using a disposable vacuum blood collection tube for drawing blood, two methods are generally adopted in clinical use: (1) Connect the empty needle with the needle removed to the T-tube for blood drawing, then put on the needle and insert the needle into the disposable vacuum blood collection tube to complete blood collection. (2) Remove the tube plug puncture structure at the tail end of the disposable venous blood collection needle, connect the tube plug puncture structure to the T-tube, and insert the tube plug puncture needle in the tube plug puncture structure into the disposable vacuum blood collection tube to complete blood collection. At present, there are still the following disadvantages: when using an empty needle, needle stick injuries are prone to occur during the step of inserting the empty needle into a disposable vacuum blood collection tube; when using the tube plug puncture structure at the tail end of a disposable venous blood collection needle, the rest of the disposable venous blood collection needle will be wasted, and since multiple tubes of blood may need to be collected each time blood is collected, inserting the tube plug puncture needle into the blood collection tube multiple times in succession often causes the tube plug puncture structure to be too tight with the T-tube, making it difficult to pull it out, and may even require the T-tube to be directly replaced, resulting in waste of the tube; and both methods are difficult to control the amount of blood collected, and blood may be wasted due to the amount of blood collected exceeding the required amount. Therefore, it is necessary to design a blood collection device with a simple structure and convenient operation to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and provide an arterial puncture blood collection needle.

[0005] The utility model is an arterial puncture blood collection needle, which includes: a tube plug puncture needle protective sleeve, a tube plug puncture needle, a tube plug puncture needle cap, a tube plug puncture needle base, and a hose with a conical joint. The tube plug puncture needle protective sleeve is made of natural rubber; the tube plug puncture needle tube is made of stainless steel SUS304; the hose is made of polyvinyl chloride; the tube plug puncture needle base and the conical joint are hard joints made of polyvinyl chloride. The tube plug puncture needle cap is also made of hard material.

[0006] Furthermore, the first end of the hose is an outer conical joint, and the tail end is an inner conical joint. The outer conical joint can be tightly connected to the T-tube of the arterial puncture catheter. The inner conical joint can be tightly connected to the base of the tube plug puncture needle.

[0007] Furthermore, the tube plug puncture needle and the tube plug puncture needle protective sleeve are both fixed on the tube plug puncture needle base, and the tube plug puncture needle protective sleeve is located outside the tube plug puncture needle and is longer than the tube plug puncture needle.

[0008] The material of the utility model is cheap, easy to use, can be sterilized by ethylene oxide, and is a disposable product. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the utility model;

[0010] Figure 2 It is a schematic diagram of the T-tube connection between the utility model and the arterial puncture catheter;

[0011] Figure 3 It is a schematic diagram of the pipe plug puncture structure of the utility model;

[0012] In the figure, 1, the tube plug puncture needle 2, the tube plug puncture needle protective cover 3, the tube plug puncture needle cap 4, the tube plug puncture needle base 5, the inner conical joint 6, the hose 7, the outer conical joint 8, the T-tube opening 9, and the T-tube. DETAILED DESCRIPTION

[0013] Reference Figures 1 to 3 The utility model provides an arterial puncture blood collection needle, which comprises: a tube plug puncture needle 1, a tube plug puncture needle protective sleeve 2, a tube plug puncture needle cap 3, a tube plug puncture needle base 4, an inner conical joint 5, a hose 6, and an outer conical joint 7. The tube plug puncture needle 1, the tube plug puncture needle protective sleeve 2 and the tube plug puncture needle base 4 together constitute a tube plug puncture structure.

[0014] The first end of the hose 6 is an outer conical joint 7, and the tail end is an inner conical joint 6. The outer conical joint 7 can be tightly connected to the T-shaped tube opening 8 of the arterial puncture catheter. The inner conical joint 6 can be tightly connected to the tube plug puncture needle base 4.

[0015] Furthermore, the tube plug puncture needle 1 and the tube plug puncture needle protective sleeve 2 are both fixed on the tube plug puncture needle base 4, and the tube plug puncture needle protective sleeve 2 is located outside the tube plug puncture needle 1 and is longer than the tube plug puncture needle 1. The tube plug puncture needle cap 3 is made of hard material, is sleeved on the outer edge of the tube plug puncture needle base 4, is located outside the tube plug puncture needle protective sleeve 2 and is longer than the tube plug puncture needle protective sleeve 2, to prevent the tube plug puncture needle 1 from being accidentally punctured during storage and transportation.

[0016] When in use, first remove the tube plug puncture needle cap 3, and after the outer conical joint 7 is connected to the T-tube opening 8, the needle at the tail end of the blood collection needle is covered by the tube plug puncture needle protective cover 2, so that blood will not be discharged. When connecting the vacuum blood collection tube, the tube plug puncture needle 1 pierces the tube plug puncture needle protective cover 2 to form a channel between the blood and the vacuum blood collection tube, and the blood will flow from the body into the vacuum blood collection tube. According to the requirements of blood collection, when the required amount of blood for the test is reached, the tube plug puncture needle 1 is pulled out to complete the blood collection.

[0017] The tube plug puncture structure adopted by the utility model is similar to the tube plug puncture structure of the disposable venous blood collection needle used in clinical practice. This type of needle is shorter and made of harder material. The needle can easily pierce the disposable vacuum blood collection tube and is not prone to needlestick injuries. When in use, the tube plug puncture structure only needs to be fixed to the T-tube once. When collecting multiple tubes of blood, the tube plug puncture structure will not be too tightly connected to the T-tube and difficult to pull out, resulting in waste of pipelines. It will not cause waste of disposable venous blood collection needles. The hose in the utility model extends the distance between the vacuum blood collection tube and the T-tube. When collecting blood, it is similar to using a disposable venous blood collection needle, and the blood collection volume can be easily controlled to avoid waste of blood. The utility model is simple and practical, and the material price is cheap. It is a disposable product.

Claims

1. An arterial puncture blood collection needle, characterized in that: It comprises a tube plug puncture needle protective sleeve, a tube plug puncture needle, a tube plug puncture needle cap, a tube plug puncture needle base, and a hose with a conical joint; the first end of the hose is an outer conical joint, and the tail end is an inner conical joint; the outer conical joint can be tightly connected to the T-tube of the arterial puncture catheter; the inner conical joint can be tightly connected to the tube plug puncture needle base; the tube plug puncture needle and the tube plug puncture needle protective sleeve are both fixed on the tube plug puncture needle base.

2. An arterial puncture blood collection needle according to claim 1, characterized in that: The tube plug puncture needle protective sleeve is located outside the tube plug puncture needle and is longer than the tube plug puncture needle.

3. An arterial puncture blood collection needle according to claim 1, characterized in that: The conical joints at both ends of the hose are made of hard materials as hard joints.

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